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B.6.3 Describe the mode of action of oral contraceptives IB Chemistry SL

Remember 3 of these facts! 1) Changes the release of hormones 2) Prevent ovulation/egg release 3) Prevent attachment to egg to uterus / thin lining of the uterus 4) Prevent sperm from reaching the egg/thicken cervical mucus. If you say "mimic pregnancy" then you will get no points!
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